Staff View: Recovery of nutrients from fish sludge as liquid fertilizer to enhance sustainability of aquaponics: A review

Recovery of nutrients from fish sludge as liquid fertilizer to enhance sustainability of aquaponics: A review

Aquaponics combines aquaculture with hydroponics by recirculating water in a closed loop. As an innovative environmental-friendly system, aquaponics is able to reuse available nutrient resource and minimize waste discharge. Current commercial aquaponics technologies only recycle liquid effluent but...

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Main Authors:	Zhang, Hong, Gao, Yueshu, Liu, Junyan, Lin, Zhiyun, Lee, Chew Tin, Hashim, Haslenda, Wu, Wei-Min, Li, Chunjie
Format:	Article
Published:	Italian Association of Chemical Engineering - AIDIC 2021
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/95043/ http://dx.doi.org/10.3303/CET2183010
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id	my.utm.95043
record_format	eprints
spelling	my.utm.950432022-04-29T22:23:33Z http://eprints.utm.my/id/eprint/95043/ Recovery of nutrients from fish sludge as liquid fertilizer to enhance sustainability of aquaponics: A review Zhang, Hong Gao, Yueshu Liu, Junyan Lin, Zhiyun Lee, Chew Tin Hashim, Haslenda Wu, Wei-Min Li, Chunjie TP Chemical technology Aquaponics combines aquaculture with hydroponics by recirculating water in a closed loop. As an innovative environmental-friendly system, aquaponics is able to reuse available nutrient resource and minimize waste discharge. Current commercial aquaponics technologies only recycle liquid effluent but considerable amount of fish sludge is filtered out of the system as waste, and therefore, a great proportion of nutrients in the sludge has not re-utilized as resource. Recovering nutrients from fish sludge directly and reintroducing it into aquaponics as liquid fertilizer has become attractive because of environmental and economic benefits which enhance the sustainability of aquaponics. This article reviewed recent progress in aquaponic system with fish sludge management as resource, including the potential of recovering nutrients in fish sludge, methods for collection of fish sludge, and the nutrient recovery via the mineralization of fish sludge. The results indicate that the management of fish sludge can be optimized to ensure high efficiency of nutrient utilization in aquaponics. Effective collection and digestion of the fish sludge to generate nutrients are the key for successful nutrient recovery. The digestion of the concentrated sludge can be performed either in anaerobic reactors or aerobic reactors. Combining the collection of fish sludge with the conversion of solid nutrients in a single device is effective in achieving high nutrient recovery efficiency of aquaponic system. A modified biological aerated filter in the process is proposed for the filtration of fish sludge and the conversion of nutrients in aquaponics. Italian Association of Chemical Engineering - AIDIC 2021 Article PeerReviewed Zhang, Hong and Gao, Yueshu and Liu, Junyan and Lin, Zhiyun and Lee, Chew Tin and Hashim, Haslenda and Wu, Wei-Min and Li, Chunjie (2021) Recovery of nutrients from fish sludge as liquid fertilizer to enhance sustainability of aquaponics: A review. Chemical Engineering Transactions, 83 . pp. 55-60. ISSN 2283-9216 http://dx.doi.org/10.3303/CET2183010
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TP Chemical technology
spellingShingle	TP Chemical technology Zhang, Hong Gao, Yueshu Liu, Junyan Lin, Zhiyun Lee, Chew Tin Hashim, Haslenda Wu, Wei-Min Li, Chunjie Recovery of nutrients from fish sludge as liquid fertilizer to enhance sustainability of aquaponics: A review
description	Aquaponics combines aquaculture with hydroponics by recirculating water in a closed loop. As an innovative environmental-friendly system, aquaponics is able to reuse available nutrient resource and minimize waste discharge. Current commercial aquaponics technologies only recycle liquid effluent but considerable amount of fish sludge is filtered out of the system as waste, and therefore, a great proportion of nutrients in the sludge has not re-utilized as resource. Recovering nutrients from fish sludge directly and reintroducing it into aquaponics as liquid fertilizer has become attractive because of environmental and economic benefits which enhance the sustainability of aquaponics. This article reviewed recent progress in aquaponic system with fish sludge management as resource, including the potential of recovering nutrients in fish sludge, methods for collection of fish sludge, and the nutrient recovery via the mineralization of fish sludge. The results indicate that the management of fish sludge can be optimized to ensure high efficiency of nutrient utilization in aquaponics. Effective collection and digestion of the fish sludge to generate nutrients are the key for successful nutrient recovery. The digestion of the concentrated sludge can be performed either in anaerobic reactors or aerobic reactors. Combining the collection of fish sludge with the conversion of solid nutrients in a single device is effective in achieving high nutrient recovery efficiency of aquaponic system. A modified biological aerated filter in the process is proposed for the filtration of fish sludge and the conversion of nutrients in aquaponics.
format	Article
author	Zhang, Hong Gao, Yueshu Liu, Junyan Lin, Zhiyun Lee, Chew Tin Hashim, Haslenda Wu, Wei-Min Li, Chunjie
author_facet	Zhang, Hong Gao, Yueshu Liu, Junyan Lin, Zhiyun Lee, Chew Tin Hashim, Haslenda Wu, Wei-Min Li, Chunjie
author_sort	Zhang, Hong
title	Recovery of nutrients from fish sludge as liquid fertilizer to enhance sustainability of aquaponics: A review
title_short	Recovery of nutrients from fish sludge as liquid fertilizer to enhance sustainability of aquaponics: A review
title_full	Recovery of nutrients from fish sludge as liquid fertilizer to enhance sustainability of aquaponics: A review
title_fullStr	Recovery of nutrients from fish sludge as liquid fertilizer to enhance sustainability of aquaponics: A review
title_full_unstemmed	Recovery of nutrients from fish sludge as liquid fertilizer to enhance sustainability of aquaponics: A review
title_sort	recovery of nutrients from fish sludge as liquid fertilizer to enhance sustainability of aquaponics: a review
publisher	Italian Association of Chemical Engineering - AIDIC
publishDate	2021
url	http://eprints.utm.my/id/eprint/95043/ http://dx.doi.org/10.3303/CET2183010
_version_	1732945425201102848
score	13.211869

Recovery of nutrients from fish sludge as liquid fertilizer to enhance sustainability of aquaponics: A review

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